olsr_bool sort_mpr_set_handler(void* olsr, void* arg_a, void* arg_b)
{
OLSR_MPR_TUPLE* data = NULL, *insert = NULL;
data = (OLSR_MPR_TUPLE* )arg_a;
insert = (OLSR_MPR_TUPLE* )arg_b;
if (cmp_ip_addr((struct olsrv2* )olsr,
&data->MPR_if_addr, &insert->MPR_if_addr) > 0)
{
return OLSR_TRUE;
}
return OLSR_FALSE;
}
static olsr_bool
process_hello(struct olsrv2 *olsr, struct hello_message *hello,
union olsr_ip_addr *in_if,
union olsr_ip_addr *from_addr)
{
struct hello_neighbor *hello_neigh = NULL;
OLSR_LIST* retList = NULL;
OLSR_LIST_ENTRY *entry = NULL;
OLSR_LOCAL_INTERFACE_BLOCK_ENTRY *local_entry = NULL;
OLSR_SYMMETRIC_NEIGHBOR_TUPLE *sym_data = NULL;
olsr_time_t time;
olsr_bool change_assn = OLSR_FALSE, selected_mpr = OLSR_FALSE;
//codexxx
// before processing hello message add the queue length of the corresponding originator to the OLSR_LIST "queue_set"
olsr_bool IPfound = OLSR_FALSE;
struct queue_info *queueInf = NULL, *tempo= NULL ;
OLSR_LIST_ENTRY *queueEntry = NULL;
queueInf = (queue_info *)olsr_malloc(sizeof(queue_info), __FUNCTION__);
queueInf->orig_IP = hello->orig_addr ;
queueInf->Qlength = hello->queuelength;
if(olsr->queue_set.numEntry == 0)
{ // insert to the list directly
OLSR_InsertList(&olsr->queue_set,queueInf,sizeof(queue_info));
}else{ // liste deja contient des element ...donc trouver si deja existe
queueEntry = olsr->queue_set.head ;
while(queueEntry != NULL) /////
{
tempo = (queue_info *)queueEntry->data ;
if(!cmp_ip_addr(olsr,&tempo->orig_IP,&queueInf->orig_IP)) ////
{ // on a trouver cet originator IP ds la liste alors update le queue et sortir de la boucle
tempo->Qlength = queueInf->Qlength;
IPfound = OLSR_TRUE;
break;
}
queueEntry = queueEntry->next ;
}
if(IPfound == OLSR_FALSE)
{ // cet IP n'existe pas deja dans la liste => l'introduire
OLSR_InsertList(&olsr->queue_set,queueInf,sizeof(queue_info));
}
}
//end codexxx
if (own_ip_addr(olsr, &hello->source_addr))
{ // wiss: ma3neta el source address byetaba2 ma3 wa7ed men el intrface address taba3 node
if(DEBUG_OLSRV2){
char* paddr = olsr_niigata_ip_to_string(olsr, &olsr->main_addr);
olsr_printf("Received Hello, but this Hello is sent from ME!!\n[%s]",paddr);
free(paddr);
}
return OLSR_FALSE; // wiss: betla3 men process_hello
}
if(search_link_set_local_for_exist(olsr,
in_if,
&hello->source_addr) == OLSR_FALSE){ // wiss:ma la2a bel olsr linkset entry 3enda local_if= "in_if" w neigbor_if=&hello->source_addr
// wiss: ma la2a jar 3endou ip hello->source_addr ma3neta el link da3
proc_link_set(olsr,
in_if,
&hello->source_addr,
LOST,
hello->willingness,
hello->vtime,
hello->htime);
}
// neighbor address
hello_neigh = hello->neighbors;
while (hello_neigh){
if(equal_ip_addr(olsr,
&hello_neigh->address,
in_if
))
{ // wiss: hello_neigh->address, byetaba2 ma3 in_if
proc_link_set(olsr,
in_if,
&hello->source_addr,
hello_neigh->status,
hello->willingness,
hello->vtime,
hello->htime);
//update symmetric neighbor set
proc_symmetric_neighbor_set(olsr,
in_if,
hello_neigh->status,
hello);
break; // wiss : so iza fet hon ya3ni la2a el neighbor so break... so iza ma la2an byente2el 3al neigh->next
}
hello_neigh = hello_neigh->next;
}
//update neighbor address association set
proc_association_set(olsr, &hello->local_iface_list, hello->vtime);
hello_neigh = hello->neighbors;
while (hello_neigh){
//process 2hop Neighbor set
proc_2neigh_set(olsr,
in_if,
&hello->source_addr,
&hello_neigh->address,
hello_neigh->status,
hello_neigh->other_neigh,
hello->vtime);
//check: own interfaces is selected MPR by source nodes.
if(selected_mpr == OLSR_FALSE &&
own_ip_addr(olsr, &hello_neigh->address) == OLSR_TRUE &&
hello_neigh->is_mpr == OLSR_TRUE) {
selected_mpr = OLSR_TRUE;
}
//next pointer
hello_neigh = hello_neigh->next;
}
//update mpr selector set , relay set, advertise neighbor set
if(selected_mpr == OLSR_TRUE) {
entry = hello->local_iface_list.head;
while(entry) {
local_entry = (OLSR_LOCAL_INTERFACE_BLOCK_ENTRY *)entry->data;
retList = search_symmetric_neighbor_set(olsr,
in_if,
&local_entry->iface_addr);
if(retList) {
if(retList->numEntry != 1) {
olsr_error("process_hello():5");
}
get_current_time(olsr, &time);
sym_data = (OLSR_SYMMETRIC_NEIGHBOR_TUPLE *)retList->head->data;
OLSR_DeleteList_Search(retList);
if(get_neighbor_status(&time, &sym_data->N_time) == SYMMETRIC) {
proc_mpr_selector_set(olsr, &local_entry->iface_addr);
if(olsr->change_mpr_selector_set) {
if(proc_adv_neigh_set(olsr, &local_entry->iface_addr)){
proc_relay_set(olsr, &local_entry->iface_addr);
change_assn = OLSR_TRUE;
}
}
}//if(get_neigh...)
}
//next entry
entry = entry->next;
}//while
}
else{ // wiss: ici selected_mpr==false
entry = hello->local_iface_list.head;
while(entry) {
local_entry = (OLSR_LOCAL_INTERFACE_BLOCK_ENTRY *)entry->data;
delete_mpr_selector_set(olsr, &local_entry->iface_addr);
if(olsr->change_mpr_selector_set) {
delete_adv_neigh_set(olsr, &local_entry->iface_addr);
if(olsr->change_adv_neigh_set) {
change_assn = OLSR_TRUE;
delete_relay_set(olsr, &local_entry->iface_addr);
}
}
//next entry
entry = entry->next;
}//while
}
/* if I am selecetd as MPR by someone,
I_am_MPR_flag turns ON and send TC message every TC_INTERVAL */
if (olsr->I_am_MPR_flag == OLSR_FALSE &&
olsr->adv_neigh_set.head != NULL){
olsr->I_am_MPR_flag = OLSR_TRUE;
}
if(DEBUG_OLSRV2)
{
olsr_printf("\tassn[%d]\n", get_local_assn(olsr));
}
if (change_assn == OLSR_TRUE)
increment_local_assn(olsr);
return OLSR_TRUE;
}
